US Patent Issued to IDEMITSU KOSAN on March 17 for "Refrigerator oil composition and mixed composition for refrigerator" (Japanese Inventor)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,448, issued on March 17, was assigned to IDEMITSU KOSAN Co. LTD. (Tokyo).

"Refrigerator oil composition and mixed composition for refrigerator" was invented by Tomoya Matsumoto (Funabashi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A refrigerator oil composition used in a refrigerant containing one or more unsaturated fluorinated hydrocarbon compounds selected from compounds represented by the following general formula (1): CxFyHz (1), wherein x is an integer of 2 to 6, y is an integer of 1 to 11, z is an integer of 1 to 11, and there are one or more carbon-carbon unsaturated bonds in the molecule, the refrigerator oil composition contain...